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Full text of "The Morphology And Evolution Of The Apes And Man"

THE NERVOUS  SYSTEM
the expense of the collateral srJcufe. The cerebellum gradually increases in size from the Gibbons upwards. with a diminution in the paraiioccular folia. The trapezium becomes more and more concealed and the pons enlarges.
From what has been said above, it is evident thai the human brain differs from those of the Apes'" in the following ways : —
(1} It is larger, both absolutely and relatively to the
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size of the bodv.
«.
'2) The neoDailiuiu i* li-.r^er and the association are-.-.s
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are more complex.
<3; The parietal and frontal lobe.- are more voluminous, and the latter are not rostrated.
(4) The Sylvian fissure is complete, and the insula i.s concealed.
<5'* There are ealearine and retro-calcarine sulci.
*" The following paper*listed ILL theBitjiiogi'i.jvhy |>p, ;>3-i-356 de^: with the brain in the Apes:—
Volume and weight—97.
Relation of cerebrum to cerebellum—158-
Development—44.
Convolutions and ii^snre^—24, 36, 37, 73, 85, 87, 124, 125, 134, *39» M3t M7» MS. M9» *&5» 167; on Gibbon* *75* 187, 199, 217, 218, 219, 222; on Orang 230, 233, 247, 279, 280; un Chimpanzees 305, 309, 310,
325. 334i 345> 347» 354» 3<5o,   3<5«»  375.  37^,   377» 400, 401, 407, 411 ;   on Gorillas 422, 423, 425, 427,
428, 43<>, 433, 43<^ 45<>, 459* 483, 497. Island of Reil—38, no, 148 taecounts of the hisula are also
contained in several of the works noted under tbe heading
Convolutions and Fissures . Evolution—148, 149. Histology—351, 360, 474-
Localization of centres—26, 80, 229, 202, 255. Psychology—116, 255, 322, 359, 389.